Finding the Fourth Proportional to 139,995.69, 210,063.60 and 64,094.09

Step by Step Solution

1. Step 1: Write the proportion equation
   139,995.69 : 210,063.60 = 64,094.09 : x
2. Step 2: Convert to fraction form
   139,995.69/210,063.60 = 64,094.09/x
3. Step 3: Cross multiply
   139,995.69x = 210,063.60 × 64,094.09
4. Step 4: Simplify right side
   139,995.69x = 13,463,834,414.07
5. Step 5: Solve for x
   x = 13,463,834,414.07/139,995.69
6. Step 6: Final answer
   x = 96,173.21